Datasheet > XR77129EVB-DEMO-1

XR77129EVB-DEMO-1

更新时间： 2024-01-01 00:25:29

品牌	Logo	应用领域
艾科嘉 - EXAR		/
页数	文件大小	规格书
28页	1860K
描述
40V Quad Output Digital PWM/PFM

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XR77129

40V Quad Output Digital PWM/PFM

Universal PMIC

FEATURES

General Description

 Quad Channel Step-down Controller

 Digital PWM 105kHz-1.23MHz Operation

 Individual Channel Frequency Selection

 Patented digital PFM with Ultrasonic mode

 Patented Over Sampling Feedback

 Programmable 5 coefficient PID control

 Integrated MOSFET Drivers

 6V to 40V Input Voltage

 0.6V to 5.5V Output Voltage (higher with exter-

nal feedback resistors)

 SMBus Compliant I²C Interface

 Full Power Monitoring and Reporting

 3 x 15V Capable PSIO + 2 x GPIOs

 Full Start/Stop Sequencing Support

The XR77129 is a quad channel digital Pulse Width Modulated (PWM)

step down (buck) controller. A wide 6V to 40V input voltage range allows

for single supply operation from standard power rails.

With integrated FET gate drivers, two LDOs for standby power and a

105kHz to 1.23MHz independent channel to channel programmable con-

stant operating frequency, the XR77129 reduces overall component

count, solution footprint and optimizes conversion efficiencies. A select-

able digital Pulse Frequency Mode (PFM) capable of better than 80% effi-

ciency at light current load and low operating current allow for portable

and Energy Star compliant applications. Each XR77129 channel’s output

voltage is individually programmable down to 0.6V with a resolution of

2.5mV, and is configurable for precise soft start and soft stop sequencing,

including delay and ramp control.

 Built-in Thermal, Over-Current, UVLO and Out-

The XR77129 operations are fully controlled via a SMBus-compliant I C

put Over-Voltage Protections

interface allowing for advanced local and/or remote reconfiguration, full

performance monitoring and reporting as well as fault handling.

 On Board 5V and LDOOUT Standby LDOs

 On Board Non-Volatile Memory

Built-in independent output Over-Voltage, Over-Temperature, Over-Cur-

rent and Under-Voltage Lockout protections insure safe operation under

abnormal operating conditions.

 Supported by PowerArchitect™ 5.2 or later

APPLICATIONS

 Industrial Control Systems

 Automatic Test Equipment

 Video Surveillance Systems

 Automotive Infotainment

The XR77129 is offered in a RoHS compliant, “green”/halogen free 44-pin

TQFN package.

Ordering Information – back page

Typical Application

1 / 28

exar.com/XR77129

Rev 1A

12 3 4 5 6 7...28

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与XR77129EVB-DEMO-1相关器件

型号	品牌	获取价格	描述	数据表
XR77129EVB-DEMO-1-KITA	EXAR	获取价格	40V Quad Output Digital PWM/PFM
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XR79106EL-F	EXAR	获取价格	22V, 6A Synchronous Step-Down
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XR79110	EXAR	获取价格	22V, 10A Synchronous Step Down COT Power Module
XR79110_17	EXAR	获取价格	22V, 10A Synchronous Step Down COT Power Module
XR79110EL-F	EXAR	获取价格	22V, 10A Synchronous Step Down COT Power Module
XR79110ELTR-F	EXAR	获取价格	22V, 10A Synchronous Step Down COT Power Module
XR79110EVB	EXAR	获取价格	22V, 10A Synchronous Step Down COT Power Module
XR79115	EXAR	获取价格	22V, 15A Synchronous Step Down COT Power Module

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